body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
}

.content {
    padding: 20px;
}
h1 {
    color: #007bff;
    margin-bottom: 20px;
}
#username {
    border: 1px solid #ccc;
}
.custom-table th, .custom-table td {
    text-align: center;
}
.logo {
    max-width: 200px;
    height: auto;
    margin-bottom: 20px;
}
.button {
    background-color: green;
    color: white;
}
p {
    color: gray;
    font-family: 'Times New Roman', Times, serif;
    font-size: 20px;
}
.container {
     margin: 20px;
     padding: 10px;
     border: 1px solid black;
 }
.flex-container {
    display: flex;
    justify-content: space-between;
}

.grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
}
@media (max-width: 600px) {
    body {
        background-color: lightblue;
    }
}
.button {
    transition: background-color 0.3s;
}

.button:hover {
    background-color: darkgreen;
}



div {
    animation: example 5s infinite;
}
.register-button {
    transition: background-color 0.3s;
}

.register-button:hover {
    background-color: darkgreen;
}
.popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid #ccc;
    background-color: #fff;
    z-index: 1000;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.popup-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}